Sigmund metzgee



UNITED STATES PATENT OFFICE.

SIGMUND METZGER, OF MANNHEIM, GERMANY.

STAINING AND GLAZING VEGETABLE FIBER, 86C.

SPECIFICATION forming part of Letters Patent No. 231,077, dated August10, 1880,

Application filed July 10, 1880.

To all whom it may concern Be it known that I, SIGMUND METZGER, ofMannheim, Germany, have invented a new and useful Improvement in theMeans for Staining and Glazing-Vegetable Fiber as a Substitute forAnimal Bristles and Horse-Hairs, of which the following is aspecification.

(No specimens.)

black and perfect gloss and smoothness, which 20 it never loses, and isrendered, in appearance, equal to bristles or horse-hair.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is 25 The method of producing agloss and smoothnesson Mexican fiber or tanipico by a bath of sulphuric acid and one ofsoda, and exposing them to rubbing, substantially for the purpose and inthe manner as described. 0

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

SIGMUND METZG-ER.

Witnesses:

J 0s. TRU'IKER, BUD. S. GERBER.

